Patents by Inventor Fu Tien Hung

Fu Tien Hung has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10415749
    Abstract: A coupler connected a hose of a grease gun includes a body having a path defined therethrough. A check valve unit and a sealing unit are located in the body. The check valve includes a spring which biases the sealing unit. A groove is defined in an outer surface of the body. A socket is mounted to the body and multiple pawls are received in the socket. The pawls each have a first end engaged with the groove, and a second end of each pawl is controlled to be connected to a fitting member. The socket has a flange extending from the inner periphery. The second ends of the pawls removably contact the flange. A trigger is pivotably connected to the body and drives the socket which is moved by pivoting the trigger so as to control the pawls to engaged with or release the fitting member.
    Type: Grant
    Filed: May 10, 2017
    Date of Patent: September 17, 2019
    Assignee: King Cho Machinery Industrial Co., Ltd.
    Inventor: Fu Tien Hung
  • Publication number: 20180299065
    Abstract: A coupler connected a hose of a grease gun includes a body having a path defined therethrough. A check valve unit and a sealing unit are located in the body. The check valve includes a spring which biases the sealing unit. A groove is defined in an outer surface of the body. A socket is mounted to the body and multiple pawls are received in the socket. The pawls each have a first end engaged with the groove, and a second end of each pawl is controlled to be connected to a fitting member. The socket has a flange extending from the inner periphery. The second ends of the pawls removably contact the flange. A trigger is pivotably connected to the body and drives the socket which is moved by pivoting the trigger so as to control the pawls to engaged with or release the fitting member.
    Type: Application
    Filed: May 10, 2017
    Publication date: October 18, 2018
    Inventor: FU TIEN HUNG
  • Patent number: 9057482
    Abstract: The auto/single functions selecting device of a grease gun includes a switch unit connected to the main body of the grease gun. When the user switches the switch unit to the first position, a single shot is available when pulling the trigger one time. When the user switches the switch unit to the second position, the grease is continuously supplied when keep pulling the trigger. The grease gun provides the function of single shot and the function of auto shot.
    Type: Grant
    Filed: June 23, 2012
    Date of Patent: June 16, 2015
    Inventor: Fu-Tien Hung
  • Publication number: 20130313051
    Abstract: The auto/single functions selecting device of a grease gun includes a switch unit connected to the main body of the grease gun. When the user switches the switch unit to the first position, a single shot is available when pulling the trigger one time. When the user switches the switch unit to the second position, the grease is continuously supplied when keep pulling the trigger. The grease gun provides the function of single shot and the function of auto shot.
    Type: Application
    Filed: June 23, 2012
    Publication date: November 28, 2013
    Applicant: KING CHO MACHINERY INDUSTRIAL CO., LTD
    Inventor: Fu-Tien HUNG
  • Patent number: D490671
    Type: Grant
    Filed: September 30, 2003
    Date of Patent: June 1, 2004
    Assignee: King Cho Machinery Industrial Co., Ltd.
    Inventor: Fu Tien Hung